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Slope Protection and Cutting Identification of Foundation Pit Construction Based on Deep Learning and Binocular Vision

In: Proceedings of the 28th International Symposium on Advancement of Construction Management and Real Estate

Author

Listed:
  • Bo Wang

    (Tianjin University)

  • Donghai Liu

    (Tianjin University)

  • Han Liu

    (Tianjin University)

Abstract

Excavation slope protection and reasonable slope cutting are crucial for construction safety in foundation pits. Currently, manual on-site inspections are frequently used to check whether slope protection and slope cutting (SPSC) meet safety requirements. However, due to the dynamic changes in the excavation face of the foundation pit, human negligence, or delayed detection, it is challenging to ensure that SPSC are executed according to requirements, which poses a safety accident to construction. To address this issue, a method for identifying SPSC in foundation pit construction based on deep learning and binocular vision is proposed. Firstly, the YOLOv7 target detection model is used to recognize slope protection facilities and determine the slope area range based on the video monitoring images at the job construction site. Then, using the binocular stereo vision method, the 3D spatial coordinates of each pixel in the slope area range in the images are obtained. Finally, the adjacent constraint detection method is used to optimize the point cloud data of the foundation pit slope, fit the slope surface and calculate the slope angle, which is used to determine whether the slope protection facilities are in compliance and whether the slope cutting meets specification requirements. A case analysis result shows that the recognition accuracy of the foundation pit slope and protection facilities calculated by this method is 0.93, the measurement error of the slope angle is 0.64°, and the relative error is 1.51%. It meets the practical accuracy requirements and provides an automated intelligent means for safety management and control of foundation pit construction.

Suggested Citation

  • Bo Wang & Donghai Liu & Han Liu, 2024. "Slope Protection and Cutting Identification of Foundation Pit Construction Based on Deep Learning and Binocular Vision," Lecture Notes in Operations Research, in: Dezhi Li & Patrick X. W. Zou & Jingfeng Yuan & Qian Wang & Yi Peng (ed.), Proceedings of the 28th International Symposium on Advancement of Construction Management and Real Estate, chapter 0, pages 1733-1750, Springer.
    • Handle: RePEc:spr:lnopch:978-981-97-1949-5_121
    DOI: 10.1007/978-981-97-1949-5_121
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